Pretty much everybody’s gotten on board the MOOC bandwagon. MIT says its edX platform for “Massive Open Online Courses,” as they’re called, heralds a “revolution in education.” Stanford professors Andrew Ng SM ’98 and Daphne Koeller, who cofounded edX competitor Coursera, have similar ambitions for their startup — and 33 universities have joined with them so far. Political commentators are excited, too: “Let the revolution begin,” proclaimed Thomas L. Friedman in The New York Times.